I personally have seen both FedEx and UPS literally just toss a package about 10 feet to my porch. Neither one have ever asked for a signature even on things where it is required. Maybe the ones in my area are just really bad. Luckily so far none of those were live animals.

As for all of you saying that you would just be late for work, or not go in, or have it delivered to your work, keep in mind not everyone has jobs like you do. Some companies are more strict than others. If you lose your job over a delivery, it makes buying food for your animals a bit tough. Catch 22.